I need the crash-report. Otherwise I cannot help out.

Hi!
I have the same issue. Here is my crash-report (beware, I installed tons of mods).

crash-2023-06-19_18.46.07-client.txt

This crash does not seem to be related to AmbientSounds but rather Exordium. So rather report it to them. I will close this issue for now due to inactivity of the original author.

Yeah, but I tried without Exordium, and the issue is the same. Without AmbientSounds it works well. It means what it means.

crash-2023-06-21_16.02.13-server.txt

Maybe try to install only fabric, CreativeCore and AmbientSounds and see if this works.

Crashed :)

crash-2023-06-21_16.24.05-client.txt

Can you tell me the exact filenames of CreativeCore and AmbientSounds?

Oh.. Excuse me, I accidentally took the forge version 😅.
I downloaded it using Prism Launcher, I will report it to them!
Have a good day :)

Problem already fixed, I got the correct version by updating it.
And excuse me for the disruption 😄.

Glad it works now!